5.12.2008

APA lan monitor mode hot standby failover mode

Here's what it looks like when a network link fails over to a secondary, standby lan (and then back again):

secondary port is down:

Link Aggregate PPA #             : 900
Link Aggregation Mode            : LAN_MONITOR
Load Balance Mode                : Hot Standby (LB_HOT_STANDBY)
Active Port PPA #                : 0
Port(s) ready                    : NONE
Port(s) not ready                : 1
Port(s) connected to active port : NONE

SYSLOG:
May 11 21:00:17 sbhs3010 vmunix: APA/LM: FOG:lan900 - lan1 is down (lan0 is active)
May 11 21:00:52 sbhs3010 vmunix: APA/LM: FOG:lan900 - lan0 isn't receiving poll packets (lan0 is active)


after plugged in:
Link Aggregate PPA #             : 900
Link Aggregation Mode            : LAN_MONITOR
Load Balance Mode                : Hot Standby (LB_HOT_STANDBY)
Active Port PPA #                : 0
Port(s) ready                    : 1
Port(s) not ready                : NONE
Port(s) connected to active port : NONE

SYSLOG:
May 11 21:01:32 sbhs3010 vmunix: APA/LM: FOG:lan900 - lan0 is now receiving poll packets (lan0 is active)
May 11 21:01:52 sbhs3010 vmunix: APA/LM: FOG:lan900 - lan1 is up (lan0 is active)

then:
Link Aggregate PPA #             : 900
Link Aggregation Mode            : LAN_MONITOR
Load Balance Mode                : Hot Standby (LB_HOT_STANDBY)
Active Port PPA #                : 0
Port(s) ready                    : 1
Port(s) not ready                : NONE
Port(s) connected to active port : 1




Primary port down:
Link Aggregate PPA #             : 900
Link Aggregation Mode            : LAN_MONITOR
Load Balance Mode                : Hot Standby (LB_HOT_STANDBY)
Active Port PPA #                : 1
Port(s) ready                    : NONE
Port(s) not ready                : 0
Port(s) connected to active port : NONE

SYSLOG:
May 11 21:03:05 sbhs3010 vmunix: APA/LM: FOG:lan900 - lan0 is down (lan1 is active)
May 11 21:03:42 sbhs3010 vmunix: APA/LM: FOG:lan900 - lan1 isn't receiving poll packets (lan1 is active)


Primary port back up:
Link Aggregate PPA #             : 900
Link Aggregation Mode            : LAN_MONITOR
Load Balance Mode                : Hot Standby (LB_HOT_STANDBY)
Active Port PPA #                : 1
Port(s) ready                    : 0
Port(s) not ready                : NONE
Port(s) connected to active port : NONE

SYSLOG:
May 11 21:05:12 sbhs3010 vmunix: APA/LM: FOG:lan900 - lan1 is now receiving poll packets (lan1 is active)


May 11 21:05:32 sbhs3010 vmunix: APA/LM: FOG:lan900 - lan0 is up (lan1 is active)
same time:
Link Aggregate PPA #             : 900
Link Aggregation Mode            : LAN_MONITOR
Load Balance Mode                : Hot Standby (LB_HOT_STANDBY)
Active Port PPA #                : 1
Port(s) ready                    : 0
Port(s) not ready                : NONE
Port(s) connected to active port : 0


doesn't fail back to original active port because both ports have the same priority.


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